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rs137852735

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PP5_Moderate

The NM_213655.5(WNK1):c.3276dup(p.Ser1093IlefsTer13) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,613,874 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. Q1092Q) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

WNK1
NM_213655.5 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2O:1

Conservation

PhyloP100: 1.10
Variant links:
Genes affected
WNK1 (HGNC:14540): (WNK lysine deficient protein kinase 1) This gene encodes a member of the WNK subfamily of serine/threonine protein kinases. The encoded protein may be a key regulator of blood pressure by controlling the transport of sodium and chloride ions. Mutations in this gene have been associated with pseudohypoaldosteronism type II and hereditary sensory neuropathy type II. Alternatively spliced transcript variants encoding different isoforms have been described but the full-length nature of all of them has yet to be determined.[provided by RefSeq, May 2010]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 12-868745-C-CA is Pathogenic according to our data. Variant chr12-868745-C-CA is described in ClinVar as [Pathogenic]. Clinvar id is 21270.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
WNK1NM_213655.5 linkuse as main transcriptc.3276dup p.Ser1093IlefsTer13 frameshift_variant 10/28 ENST00000340908.9
WNK1NM_018979.4 linkuse as main transcriptc.2140-2518dup intron_variant ENST00000315939.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
WNK1ENST00000340908.9 linkuse as main transcriptc.3276dup p.Ser1093IlefsTer13 frameshift_variant 10/285 NM_213655.5 A2Q9H4A3-5
WNK1ENST00000315939.11 linkuse as main transcriptc.2140-2518dup intron_variant 1 NM_018979.4 P2Q9H4A3-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000540
AC:
79
AN:
1461656
Hom.:
0
Cov.:
31
AF XY:
0.0000495
AC XY:
36
AN XY:
727112
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000684
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neuropathy, hereditary sensory and autonomic, type 2A Pathogenic:1Other:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 24, 2005- -
not provided, no classification providedliterature onlyGeneReviews-French Canadian founder variants -
Pseudohypoaldosteronism type 2C;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInvitaeNov 21, 2023This sequence change creates a premature translational stop signal (p.Ser1093Ilefs*13) in the WNK1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in WNK1 are known to be pathogenic (PMID: 22910560). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with autosomal recessive hereditary sensory and autonomic neuropathy (PMID: 15060842, 15911806, 28422281). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is also known as c.918dupA and c.918_919insA (p.S307Ifs*13). ClinVar contains an entry for this variant (Variation ID: 21270). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs137852735; hg19: chr12-977911; API